u/Ergentlic

This makes no sense to me. There are full-cast audio dramatizations of nearly every every Poirot novel. Yet the one Poirot story that Christie actually wrote as a play is only available as audiobooks of the Charles Osborne novelization. What gives?

I've tried reading and listening to the novelization, but I find the adaptation very clunky. (Stage directions do not work as narration!) I suspect I would enjoy it more if actually performed. Given audiences' continued appetite for Poirot, I cannot understand why the estate hasn't ensured a proper modern adaptation for TV, film or audio drama.